鼠标事件

本节目标：理解“鼠标事件”的核心思路，并能把它用于实际开发或面试表达。 ==mouseover== ==和== ==mouseenter== ==的区别？== ==当鼠标移动到元素上时就会触发== ==mouseenter== ==事件，类似== ==mouseover====，它们两者之间的差别是== ==mouseenter== ==不会冒泡。====== ==由于== ==mouseenter== ==不支持事件冒泡，导致在一个元素的子元素上进入或离开的时候会触发其== ==mouseover== ==和== ==mouseout== ==事件，====== ==但是却不会触发== ==mouseenter== ==和== ==mouseleave== ==事件。====== ==详细资料可以参考：== ==《====mouseenter== ==与== ==mouseover== ==为何这般纠缠不清？》== > 来自

 <https://github.com/CavsZhouyou/Front-End-Interview-Notebook/blob/master/JavaScript/JavaScript.md>